Your Best G43 Chain Supplier
Tuohai provides comprehensive production and customization services for G43 chains, boasting over 25 years of manufacturing experience and advanced production equipment, including CNC drawing machines, CNC chain-making machines, fully automatic welding equipment, and more. Our products exhibit high precision and strength exceeding international standards, enabling the production of G43 chains compliant with various national standards.
What is G43 Chain?
The G43 chain, also known as the high test chain, is a type of short-link industrial chain suitable for medium-load applications.
Although the appearance of G43 is similar to G30, the G43 chain undergoes heat treatment, resulting in a strength increase of over 50% compared to G30 proof coil chain. It’s important to note that G43 chains should not be used for overhead lifting.
G43 Chain with Different Finishing
Tuohai offers various surface treatments for G43 chains to enhance their corrosion resistance, hardness, and aesthetic appearance, ensuring optimal performance in different applications.
The surface of the G43 Chain has a thick zinc layer, providing excellent corrosion resistance
While its corrosion resistance is not as high as hot-dip galvanized, it has a high gloss finish and lower cost
This type G43 Chain has a higher surface hardness and some degree of corrosion resistance
The surface features a wear-resistant coating available in multiple colors for easy identification
High Strength Material
Tuohai’s G43 chains are all made of high-strength carbon steel or alloy steel.
These materials undergo special strengthening processes, enabling the chains to withstand higher tensile forces or loads.
Stringent Heat Treatment Process
In the production of G43 chains, Tuohai employs a mandatory heat treatment process, which includes quenching and tempering.
This further enhances the mechanical properties of the chains, resulting in significantly increased strength compared to G30 chains.
Company Advantage
During welding, chain links may experience slight deformation due to high temperatures, which could affect their performance during use. Therefore, after welding, Tuohai’s G43 chains undergo immediate processing in fully automated correction equipment to ensure that all links are symmetrical and meet various standards.
Tuohai possesses advanced tensile testing equipment. After production, all chains undergo tensile testing to ensure they meet customer requirements and guarantee safety during use.
For other material, size, or application requirements, we also supply Tow Chain.
Manufacturing of G43
Tuohai’s technical team boasts over 25 years of accumulated expertise, particularly in the production of G43 chains. At every stage of G43 chain production, our team offers unique insights.
- Material Selection: The choice of materials directly influences the strength and performance of G43 chains.
- Welding: Tuohai offers various welding methods such as TIG welding, MIG welding, laser welding, resistance welding, etc.
- Surface Treatment: Different surface treatments determine the usage scenarios and lifespan of G43 chains.
- Heat Treatment: Heat treatment further enhances the strength of G43 chains.
Tuohai has been providing a wide range of chains for all industries requiring them. You can customize your G43 chains according to your specific requirements, including materials, dimensions, surface treatments, etc.
Tuohai will collaborate with you to enhance your profits and expand your market.
Tab Heading ( 可以放参数表，图片集合，图纸等等）
- Applications
- NACM96 G43 Size Chart
- NACM84/90 G43 Size Chart
- ISO G43 Size Chart
Due to its reliable strength and safety, G43 chains are widely used in applications requiring high security and durability. These include anchor chains and mooring chains on ships, industrial lifting, towing, transportation for bundling and securing cargo, and other applications where high-performance chains are needed.
| HIGH TEST CHAIN NACM96(G43) | |||||||||||||
| NORMINAL SIZE |
MATERIAL DIAMETER |
WORKING LOAD LIMIT |
PROOF TEST (MIN) |
BREAKING FORCE MIN |
INSIDE LENGTH |
INSIDE WIDTH |
|||||||
| MM | IN | MM | IN | KG | LB | KN | LB | KN | LE | MM | IN | MM | IN |
| 7.0 | 1/4 | 7.0 | 0.276 | 1180 | 2800 | 17.3 | 3900 | 34.6 | 7800 | 31.5 | 1.24 | 9.8 | 0.38 |
| 8.7 | 5/16 | 8.7 | 0.343 | 1770 | 3900 | 26.0 | 5850 | 52.0 | 11700 | 32.8 | 1.29 | 11.2 | 0.44 |
| 10.0 | 3/8 | 10.3 | 0.406 | 2450 | 5400 | 36.0 | 8100 | 72.6 | 16200 | 35.0 | 1.38 | 14.0 | 0.55 |
| 11.9 | 7/16 | 11.9 | 0.468 | 3270 | 7200 | 48.0 | 10800 | 96.0 | 21600 | 41.6 | 1.64 | 16.6 | 0.65 |
| 13.0 | 1/2 | 13.5 | 0.531 | 4170 | 9200 | 61.3 | 13800 | 122.6 | 27600 | 45.5 | 1.79 | 18.2 | 0.72 |
| HIGH TEST CHAIN NACM84/90(G43) | |||||||||||||
| NORMINAL SIZE |
MATERIAL DIAMETER |
WORKING LOAD LIMIT |
PROOF TEST (MIN) |
BREAKING FORCE MIN |
INSIDE LENGTH |
INSIDE WIDTH |
|||||||
| MM | IN | MM | IN | KG | LB | KN | LB | KN | LE | MM | IN | MM | IN |
| 7.0 | 1/4 | 7. | 0.276 | 1180 | 2600 | 16.6 | 3750 | 33.1 | 7500 | 31.5 | 1.24 | 9.8 | 0.38 |
| 8.0 | 5/16 | 8.0 | 0.315 | 1770 | 3900 | 21.6 | 4900 | 43.2 | 9700 | 32.8 | 1.29 | 11.2 | 0.44 |
| 10.0 | 3/8 | 10.0 | 0.394 | 2450 | 5400 | 33.8 | 7600 | 67.6 | 15200 | 35.0 | 1.38 | 14.0 | 0.55 |
| 13.0 | 1/2 | 13.0 | 0.512 | 4170 | 9200 | 57.1 | 12900 | 114.2 | 25700 | 45.5 | 1.79 | 18.2 | 0.72 |
| HIGH TEST CHAIN ISO(G43) | ||||||||||||
| TRADE SIZE | WIRE DIAMETER | INSIDE DIMENSIONS | WORKING LOAD LIMIT (WLL/SWL) | BREAKING LOAD LIMIT (BLL/MBL) | ||||||||
| in | mm | in | LENGTH | WIDTH | kg | kn | lb | kg | kn | lb | ||
| mm | in | mm | in | |||||||||
| 1/4 | 7 | 0.27 | 21.3 | 0.84 | 10.41 | 0.41 | 1180 | 11.5 | 2600 | 3540 | 34.6 | 7800 |
| 5/16 | 8.7 | 0.32 | 26.2 | 1.03 | 12.95 | 0.51 | 1770 | 17.3 | 3900 | 5310 | 52 | 11700 |
| 3/8 | 10 | 0.39 | 31 | 1.22 | 15 | 0.59 | 2450 | 24 | 5400 | 7350 | 72 | 16200 |
| 7/16 | 11.8 | 0.46 | 35.6 | 1.4 | 16.5 | 0.65 | 3270 | 32 | 7200 | 9810 | 96 | 21600 |
| 1/2 | 13 | 0.51 | 40.34 | 1.59 | 19.3 | 0.76 | 4170 | 40.9 | 9200 | 12510 | 122.6 | 27600 |
Related Product
This is primarily because G43 chains are made of high-strength materials, and their manufacturing and testing standards are stricter compared to G40 chains.
Their tensile strength is also much higher than that of G30 and other standard chains, making them commonly used in applications requiring relatively high strength. Therefore, they are referred to as high test chains.
No, they cannot.
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G40 chains, also known as G4 or BBB chains, share some similarities with G43 chains but are not identical.
G40 chains are made of medium carbon steel and undergo certain heat treatments, providing moderate strength suitable for general lifting or towing purposes.
On the other hand, G43 chains, also referred to as High Test Chains, are made of high-strength carbon steel and undergo more stringent heat treatment processes. They possess higher strength compared to G40 chains, and their standards are stricter. G43 chains are suitable for applications requiring higher strength and safety, such as ship anchor chains, mooring chains, industrial lifting, and transportation.
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